black belt

American  

[blak belt] / ˈblæk ˌbɛlt /

noun

1. Martial Arts.

   1. a black cloth waistband conferred upon a participant in one of the martial arts, as judo or karate, to indicate a degree of expertise of the highest rank.

   2. a person who has obtained such rank

   3. the rank itself.

2. a person proficient in some particular skill or endeavor; expert.

3. (initial capital letters) a narrow belt of dark-colored, calcareous soils in central Alabama and Mississippi highly adapted to agriculture, especially the growing of cotton.

4. (initial capital letters) the area of a city or region inhabited primarily by Black people.

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black belt British  

noun

1. martial arts

   1. a black belt worn by an instructor or expert competitor in the dan grades, usually from first to fifth dan

   2. a person entitled to wear this

2. a region of the southern US extending from Georgia across central Alabama and Mississippi, in which the population contains a large number of Black people: also noted for its fertile black soil

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Other Word Forms

Derived Forms

• black-belt
  adjective

Etymology

Origin of black belt

First recorded in 1865–70

Example Sentences

Proof of concept: he's a black belt in judo and jiujitsu -- and also working on a PhD.

From Barron's • Jun. 12, 2026

A black belt in taekwondo, the impressive Yanin sets the bar high in the opening scene, battling two goons who hoist her aloft in the splits.

From Los Angeles Times • Jun. 11, 2026

The show's stylists kitted her out with a black belt and boots to complete her look.

From BBC • Jan. 24, 2026

Ver is clean-cut and fit — he has a black belt in Brazilian jujitsu.

From Salon • Jan. 23, 2026

He had a stomach so big that his thin black belt reminded me of the equator circling the globe.

From "The Glass Castle" by Jeannette Walls